/Engine/Source/Runtime/Experimental/Chaos/Public/GeometryCollection/GeometryCollectionClusteringUtility.h
Finds all Bones in same cluster as the one specified
static void GetClusteredBonesWithCommonParent ( const [FGeometryCollection](API\Runtime\Chaos\GeometryCollection\FGeometryCollection) * GeometryCollection, int32 SourceBone, [TArray](API\Runtime\Core\Containers\TArray)< int32 > & BonesOut )